Trade union activists have lead the tributes to Bob Crow and Tony Benn ahead of their annual May Day march.

This year's London May Day presents a huge opportunity for the trade unions and the community to both pay tribute to the massive contribution made by Bob Crow and Tony Benn to the fight for workers' rights and to send out the clear message that the battle goes on. "The traditional London May Day march has always been a celebration of international solidarity and the 2014 event will do just that in honour of Bob and Tony.

– Tony Lennon, Chief Steward from the London May Day Organising Committee

RMT branches and regions have been building for a massive turn out on May Day in London in memory of both Bob Crow and Tony Benn under the theme "Don't Mourn - Organise" - the immortal words of the union organiser Joe Hill.

RMT is grateful for the work and support of the London May Day Organising Committee who have given us such a huge international platform at the heart of the capital city to honour Bob and Tony.

Trade union activists say their annual May Day march will commemorate two of the titans of their movement; the former leader of the RMT Bob Crow and the former Labour MP Tony Benn.

The London May Day Organising Committee said it wanted to pay tribute to their work but also put across the message that the movement should not just mourn but also organise to fight for rights for workers.